Hagen, M.
Schmidt, S.
Schulz, R.
Vieth, V.
Ottow, C.
Olze, A.
Pfeiffer, H.
Schmeling, A. http://orcid.org/0000-0002-0135-1617
Article History
Received: 6 November 2019
Accepted: 11 December 2019
First Online: 2 January 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the Medical Ethics Committee, Münster (2016-490-f-S).